How can I correct a stack mac address
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‎11-16-2015 01:57 PM
We have a stack of 1 x460 and 3 x440s running summitX-15.5.3.4-patch1-2.xos
Over the weekend the building they are in lost power and apparently power was restored 1 phase at a time.
Slot 4 has rebooted several additional times with the reason (no master) and the stack mac address on slot 4 is not correctly configured.
Slot-1 MCEC_MDF.2 # sho stacking configuration Stack MAC in use: 02:04:96:99:2c:1c
Node Slot Alternate Alternate
MAC Address Cfg Cur Prio Mgmt IP / Mask Gateway Flags Lic
------------------ --- --- ---- ------------------ --------------- --------- ---
*00:04:96:99:2c:1c 1 1 Auto CcEeMm-Nn --
00:04:96:98:ab:18 2 2 Auto --EeMm-Nn --
00:04:96:98:aa:e0 3 3 Auto --EeMm-Nn --
00:04:96:98:ab:38 4 4 Auto --Ee--iNn --
* - Indicates this node
I have not tried on this switch yet, but have tried to configure the stack mac on switches on other stacks and never had any luck. In the past I have always had to unconfigure switch all, run easy stacking and reload the config.
Any thoughts,
Over the weekend the building they are in lost power and apparently power was restored 1 phase at a time.
Slot 4 has rebooted several additional times with the reason (no master) and the stack mac address on slot 4 is not correctly configured.
Slot-1 MCEC_MDF.2 # sho stacking configuration Stack MAC in use: 02:04:96:99:2c:1c
Node Slot Alternate Alternate
MAC Address Cfg Cur Prio Mgmt IP / Mask Gateway Flags Lic
------------------ --- --- ---- ------------------ --------------- --------- ---
*00:04:96:99:2c:1c 1 1 Auto
00:04:96:98:ab:18 2 2 Auto
00:04:96:98:aa:e0 3 3 Auto
00:04:96:98:ab:38 4 4 Auto
* - Indicates this node
I have not tried on this switch yet, but have tried to configure the stack mac on switches on other stacks and never had any luck. In the past I have always had to unconfigure switch all, run easy stacking and reload the config.
Any thoughts,
5 REPLIES 5
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‎11-16-2015 02:04 PM
Hi David,
The stack mac can be resolved with the "configure stacking mac" from the master. A reboot is required after this command is implemented. The "synchronize stacking" command may been needed as well.
As far as the slot rebooting that is a mystery. I do notice that the stack only has one master capable node. This means if slot 1 dies the entire stack dies. Was this intended?
The stack mac can be resolved with the "configure stacking mac" from the master. A reboot is required after this command is implemented. The "synchronize stacking" command may been needed as well.
As far as the slot rebooting that is a mystery. I do notice that the stack only has one master capable node. This means if slot 1 dies the entire stack dies. Was this intended?
